Summary of binding events and precautions in JS

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In the work , All are project development , The methods used are optimal , Those most basic methods have been forgotten ,
Today, I want to sum up , Make a note of . Strengthening memory
DOM Three methods of event binding in
1、 The most basic and primitive
Bind in the tag element , Single quotation marks 、 Double quotation marks are OK () Don't forget it ,

2、 Commonly used in work The binding event stay js Code

3、 Event monitoring Most used in work Because you can listen to multiple events , above 1-2 Method cannot bind multiple events ,

 The same thing , Events bound later   Will overwrite previous events 

Bind in row and column , If more than one , The code is too bloated , Poor readability , Adverse expansion
stay js In the code , adopt onXXXX= fn Method Cannot bind multiple events
adopt addEventListener（IE I won't support it ,IE Use attachEvent） Multiple events can be monitored , But consider browser compatibility , IE I have given up my browser kernel , Using Google kernel . This is exciting good news